Bring together a dark ambient artist and an ethnomusicologist and give them an ancient Tibetan kingdom as their theme, and you get Zhang Zhung. This release offers two long tracks that cover an hour and twenty minutes, time spent deeply immersed in the sounds of ritual and the sense of the endless vista of the landscape. Gabbasov brings in a host of Tibetan instruments, from airy flutes to the wonderfully cacophonous silnyen (Tibetan cymbals). The ritual would not be complete without throat singing/chant, so you get that as well. The first track, “Bon Sacred Rituals,” carries more of the call-to-prayer aspect. Reminiscent, for me, of the work of Nawang Khechog, the track opens with plaintive cries over a rising drone backdrop from SIJ (Vladislav Sikach). The duo go on to paint a cold and windswept landscape where horns echo in the distance.